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DRILL.

Patented Apr. 30,` 1889.

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DRILL. NO.- 402,170. Patented Apr. 30, 1889.

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DRILL Patented Apr. 30. 1889.

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UNITED STATES PATENT OFFICE.

' PULASKI LEEDS, OF LOUISVILLE, ASSIGNOR TO R. T. MILLER, OF

COVINGTON, KENTUCKY.

DRILL.

SPECIFICATION forming part of Letters Patent No. 402,170, dated April30, 1889.

' Application filed December 17, 1888. Serial No. 293,817. (No model.)

To all whom it may concern: Y

Be itknown Jthat I, PULAsKI LEEDS, a citizen of the United States,residing at Louisville, State of Kentucky, have invented certain new anduseful Improvements in Universal Drills, of which the following is aspeciiication, reference being had to the accompan'ying drawings.

Thisinvention relates to an improvement in drill-presses, and providescertain means of adjustment by which the drill may be set at diiferentheights and directed at different angles.

Figure l represents the improved drillpress in elevation. Fig.' 2 is thesame in plan. Fig. 3 is a vertical section through xx, Fig. 2. Fig. 4 isan elevation with section through y-y, Fig. 2. Fig. 5 is a plan with theupper. portions removed. The remaining four figures relate to modifiedforms of construction.

A is a bed, consisting, essentially, of two parallel inclined T-rails,A. The base-pieces B rest upon the rails and form part of the table N,the upper surface of which is flat and horizontal to support the partsabove. Two circular slots, o fu, Fig. 2, are cut in table N toreceivethe bolts W, which project downward from frame E, carrying 4the drillingmechanism, and which, when loosened,

allow of a limited horizontal rotation of E upon N about the pivot-boltU, and when tightened clamp the support E firmly to the base N. Blocks Cclasp the rails, as shown at Fig. 4, on their lower edge, and, with thebolts, D extending therefrom and passing through the projecting cornersof the base B,

serve to clamp the base B at any desired point of the bed.

Eis a supporting-frame, having a plane surface at the bottom, resting onNand pivoted to it at U, Fig. 3. The supporting-frame E is fashionedwith suitable bearings to receive the horizontal and vertical spindles MM', carrying, respectively, the bevel-wheels L L', which gear into eachother, and to it is also secured the supporting-frame F by means of thering G, the form andnrelations of which are shown in The ring G issecured, Fig. 3, to the supporting-frame F by the bolts H, which areloosened to allow the frame F to rotate thereon in a vertical plane andare tightened to secure the frame F at any anglev desired. The support Fcarries the drill-stock I and the bevel-wheel L f by which a drillinserted at I is operated at any vertical angle, and which is fed by theusual screw mechanism. (Shown in Figs. 2 and 4.) The bevel-wheel Lreceives its motion from the double bevel-wheel L which in turn receivesits motion either from the spindle lv or through the bevel-wheel L andspindle M, as convenience may require.

Figs. 6 and 7 showa modification of my devices to provide for completehorizontal rotation of the drill mechanism. In this form the base n hasa slot, o, which is a complete circle, in which screw-bolts t work,attaching the revolving base n', allowing it to be rotated or clampedaccordingly as the bolts are loosened or tightened. The supporting-frameE is bolted tothe base n', as in Fig. 8,'carrying iis attachments asdescribed above.

Still another modification is shown in Figs. S and 9, in which, insteadof the inclined base A, previously described, a cylindrical base, O, isprovided, the interior of which is threaded with a screw, fitting intowhich is the exterior screw of an interior cylinder, P, having at itstop a plane surface and a circular slot, c, the use and construction ofwhich being the saine as described above in connection with Figs. 6 and7. The outer cylinder, '0, is split downward vertically on one sideabout half-way, as shown at S, to allow of its being tightened upon theinner cylinder by the bolt T, passing through the lugs t, which boltbeing loosened, the inner cylinder, P, turns freely within the outercylinder, O, thus by means of the screw u adjusting the drill to anydesired height.

The bases B and O, the clamp O, and the frame A are not parts of myinvention, but are shown as means for securing my drill to the bench andfor raising and lowering said drill as convenience in working mayrequire. Y

I claim as my invention-4 1. A universal radial drill having horizontaland vertical angular adjustments, consisting of supporting-frame F,carrying they drill-stock I and the bevel-wheel L, the bearings of theshaft, which are secured by the carrying the bevel-wheel L, the doublebevelwheel L', and the driving-spindles M and M', and beingl pivoted toa slotted base-plate, as Shown and described.

2. In a universal drill, the combination of the horizonteily-rotatableframe E, Carrying suitable driving-shaft, and the verticallyrotatableframe F, supported on the frame E and carrying suitable drill-shaft,said shafts having suitable connecting-gearing, for the purposesexplained.

3. In a universal drill, the Combination, with a suitable drill and itsmovable support or supports, of two driving-shafts gearing with saiddrill and projecting in different directions for convenience in driving'the drill when in its different positions, as fully explained.

4. In a universal drill, the eombin ation, with i the horizontalrotatable frame and the drill and drill-shaft carried thereby, ofadditional drive-shaft gearing with the first and extending at rightangles therefrom foreonvenieuce in driving when the iirst shaft is outof reach, as explained.

5. In a universal drill, the combination of a suitable base, ahorizontally-rotatable supporting-frame mounted on the base, ahorizontal driving-shaft, a vertical driving-shaft, a verticallyrotatable supporting frame mounted on the horizontal frame, and asuitable drill mounted on the vertical frame and gearing with the saiddriving-shafts, said frames being,` also provided With suitable clampingdevices, all substantially as set forth.

The foregoing specification of my invention signed by me this 27th dayof October, l A. D. 1888.

PILASKI LEEDS.

Witnesses:

P. J. GADWALLADER, JEPTHA GARRARD.

